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Home / News / The role of preforms and the production process of plastic beverage bottles

The role of preforms and the production process of plastic beverage bottles

The bottle preform manufacturer introduces that the bottle preform is before the bottle form. It has a thick, transparent tube that can be sealed with an ordinary plastic cap. Also, it cannot break and stand on the table. It can replace the tube in several ways.
Preforms are usually formed from hot runner molds. There is a heat shield between the mold and the mold of the injection molding machine. Its thickness is about 12 mm, and the insulating board needs to withstand high voltage. The exhaust gas needs to avoid local overheating or fragmentation, but the depth of the exhaust port should not be greater than 0.03mm, otherwise, it is easy to produce flash.
The role of the preform
1. It can be used as an intermediate product, and it can be viewed better after production. If there is an unpleasant address, it can be modified concisely, and it will not become waste after completion.
2. It is easier to make, and we can send molds very well so that the seat can be made better.
3. The material of this kind of product is generally relatively simple to process, so our purpose is to save operating costs, and of course, it can also reduce the workload. In the mold, then naturally it can be better put into production inspection, and some mistakes can be saved so that better to protect the benefits of our seats.
It may be rare to see preforms, which are closely related to the plastic bottles we often use. In our daily life, we use various bottles. When we need to drink water, we probably use plastic bottles. As researchers, we may work with a variety of glassware. Therefore, the industry in which the bottles are produced is very important to us. We all know that bottles have to pass through preforms before being formed.
Plastic beverage bottle production process?
The production process of beverage bottles is divided into one-step method and two-step methods:
1. One-step method: Plastic particles are injected into the preform mold by heating and melting, and then cooled and shaped to become a semi-finished product (perform similarly to a test tube shape, also called a tube embryo). When the preform is not completely cooled, it is heated and adjusted, and then sent to Enter the blowing mold, the plastic of the bottle preform is evenly distributed by stretching and blowing the bottle, and it is close to the blowing mold. After the high-pressure blowing is completed, the cooling air is introduced. When it is completely cooled and shaped, the blowing mold is opened, and the beverage bottle is formed. .
2. Two-step method: divided into preform injection and bottle blowing.
preform injection: Plastic particles are injected into the preform mold by heating and melting, and then cooled and shaped to become a semi-finished product (perform similarly to a test tube shape, also called a tube embryo).
Blowing: The preform cooled to normal temperature is heated and adjusted, and then sent to the blowing mold. The plastic of the tube embryo is evenly distributed by stretching and blowing the bottle, and it is close to the blowing mold. After the high-pressure blowing is completed, the cooling air is introduced. , when it is completely cooled and shaped, the blow mold is opened, and the beverage bottle is formed.

30MM 30/25 PET Preform

NECK TYPE NECK SIZE WEIGHT HEIGHT QTY/CTN CARTON SIZE
30/25 30mm 13g 84mm 1040 53x35x38
30/25 30mm 14g 84mm 1040 53x35x38
30/25 30mm 16g 92mm 1000 53x35x38
30/25 30mm 17g 92mm 1000 53x35x38
30/25 30mm 18g 92mm 850 53x35x38
30/25 30mm 19g 92mm 850 53x35x38
30/25 30mm 20g 94mm 850 53x35x38
30/25 30mm 21g 94mm 850 53x35x38
30/25 30mm 22g 106mm 760 53x35x38
30/25 30mm 23g 103mm 680 53x35x38
30/25 30mm 25g 103mm 680 53x35x38
30/25 30mm 28g 121mm 580 53x35x38
30/25 30mm 30g 121mm 580 53x35x38
30/25 30mm 32g 128mm 500 53x35x38
30/25 30mm 34g 128mm 500 53x35x38
30/25 30mm 36g 130mm 460 53x35x38
30/25 30mm 38g 133mm 460 53x35x38
30/25 30mm 40g 143mm 420 53x35x38
30/25 30mm 43g 147mm 420 53x35x38
30/25 30mm 45g 141mm 390 47x31x34
30/25 30mm 50g 380 50x38x28

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